Swim in Cardiff in march 2025What is the temperature of the sea in in march?
Average sea temperature in Cardiff in march 2025.
In march, according to seasonal norms, the sea temperature in Cardiff is:
Minimum: 46°F
Average: 48°F
Maximum: 50°F
Other useful seasonal weather averages in march:
- Outside temperature: 41°F to 51°F
- Most common weather: "Cloudy"
- The wind blows at 1.2mph
- It rains a total of 1.7in, over 2 day(s).
Should we swim in Cardiff in march?
No... The water temperature in Cardiff in march is freezing
You won't be able to swim in Cardiff in march! The water temperature is freezing, reaching as low as 46°F (and only 50°F at best)! Our advice: if you are going to Cardiff this month, plan to sightsee and forget the beach!
Note also that in march, the climate is very bad with an average outside temperature of 46°F, 1.7in of precipitation (over 2 days) and 88.09 % humidity.
Water and normal seasonal temperatures in Cardiff in march
| March | |||
| Average sea temperature | 48°F | ||
| Minimum sea temperature | 46°F | ||
| Maximum sea temperature | 50°F | ||
| Average outside temperature | 47°F | ||
| Maximum outside temperature | 52°F | ||
| Minimum outside temperature | 41°F | ||
| Wind speed | 15.5mph | ||
| Wind temperature | 36°F | ||
| Precipitation | 1.7in | ||
| Number of days of rain | 2 jour(s) (8%) | ||
| Humidity | 89% | ||
| Visibility in kilometers | 9.2km | ||
| Cloud cover | 51% | ||
| Our opinion | freezing swimming |
Swim elsewhere in Wales in march
| City | Average T° | Min. T° | Max. T° | Our opinion | Pembrokeshire in march | 47°F | 49°F | freezing swimming | Swansea in march | 47°F | 49°F | freezing swimming | Barmouth in march | 47°F | 49°F | freezing swimming | Llandudno in march | 46°F | 48°F | freezing swimming |